203557625

素因数分解:

$5^3\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{401}}^1$

素因数の和:578

約数の個数: 32

約数和(自身を含む): 264895488

約数和(自身を除く): 61337863

約数列:

[1, 5, 25, 31, 125, 131, 155, 401, 655, 775, 2005, 3275, 3875, 4061, 10025, 12431, 16375, 20305, 50125, 52531, 62155, 101525, 262655, 310775, 507625, 1313275, 1553875, 1628461, 6566375, 8142305, 40711525, 203557625]

約数ペア:

[(1, 203557625), (5, 40711525), (25, 8142305), (31, 6566375), (125, 1628461), (131, 1553875), (155, 1313275), (401, 507625), (655, 310775), (775, 262655), (2005, 101525), (3275, 62155), (3875, 52531), (4061, 50125), (10025, 20305), (12431, 16375)]